Train-control system



March 10, 1925.

T. BODDE TRAIN CONTROL SYSTEM Filed Jan. 24, 1923 Patented Mar. 10, 1925.

urn-3o STATES PATENT OFFICE.

THEQDORE BO'DDE, Q1 NIAGARA. FALLS. NEW YORK, ASSIGNOR TO THE REGAN SAFETY DEVICES COMPANY, INC, 0]? NEW YORK. N. Y., A CORPORATION 01: NEW YORK.

TRAIN-CONTROL SYSTEM.

Application filed January 24, 1923.

To aZl 'wli am 1' t nmy concern Be it known that I, Tunooonn BODDE, a citizen of the United States, and resident of Niagara Falls, in the county of Niagara and State of New York, have invented cer- "tain new and useful Improvements in Train- .Control'Systems, of Wliich the following is a specification.

This invention relates to train control systems, and more particularly to a system for controlling the movement of trains automatically from the roadside in response to traffic conditions; and has special reference to the provision of a system of the intermittent contact or ramp type in which eooperating train and track mechanisms are operated from a vehicle source of energy in response to different roadside conditions.

The principal objects of my present invention may be said to include the provision of a train control system in which a train carried mechanism intermittently cooperates with roadside mechanism for producin such etiects as proceec speed restrictive" and stop od'ects on the train in response. to roadside clear, caution and danger track conditions, the said vehicle and roadside mechanism being operat d only hy a vehicle carried source of energy; the further provision of a system ofthis nature in which the roadside mechanism comprises a ramp means cooperating with the vehicle carried mechanism for intermittently controlling vchiele circuits, and roadside means for detel-minim. the manner or character ol energiZatiOn ot' the vehicle circuits. \vith the said vehicle circuits fed from the vehicl source of en rgy by nay of or through the roadside me hanism: the further provision of a train control system l this nature in which the roadside ine luiliisiii includes moans for determining the phase of current for taiergiZin; the vehicle, cil't'lllts from the vehicle. sour e it t' ll l' 1 Illill tin- Jill ut llltl' provisi-Lm ol' nov l 'lllt'll cir uit mechanism tor maintaining the \ehiciz' Jul-chm ni m in a condition as prcdctcrniined h the roadside iimcltaiiism.

To the act-onipiishnu-iit of the l or g oirg and such other hie s as will appear hereinafter, my iiw 'l li wia c nsists in the elc- Serial No. 6mm.

merits and their relation one to the other, as hereinafter particularly described and sought to he defined in the claims, reference being had to the accompanying drawing which shows preferred embodiments of my invention, and in which Figure l is a diagrammatic view showing the vehicle carried apparatus and circuits and the roadside apparatus and circuits for one block, and

Figure 2 is a diagrammatic view showing a portion of the vehicle carried apparatus in modified form.

In the train control system of my present invention, for directly controlling the movement of the train there is provided an electroresponsive device for controlling the operation of the air hrake system,the said electroresponsive device being under the control of cooperating train and roadside mechanism and l eing operated thereby in accordance with roadside conditions. The electroresponsive. device comprises in the preferred construction an electromagnet 20 which controls the operation of a combined r servoir and brake valve 21 ot the type disclosed in the patent to A. ll. Shaver No. 1,411,526 of April 4, 1922, the said reservoir and hralzc valve being interposed between the main reservoir 22 of the air hrake system and the enginemans l ralze valve 23 and being connected thereto by means of the piping, and 2? respectively, the said. reservoir and hralce valve 21 including a reservoir valve which under normal conditions permits the free How oi reserioir air f om the \nain reservoir to the enginemans brake valve, and which under unsafe running conditions of the train isclosed to cut oil the supply of air from the main reservoir to the engineiuaiis valve.

The comhincd reservoir and hralrc valve 21 is also comm-ted hy means of the pipe 26 to the brake pipe 27 of the air brake. system, and to exhaust through the pipe H, the construction ind operation of these parts hi ing such that under normal runnim: conditions, of the train the brake. valve of the valve mechanism 21 is closed to prevent venting eommunication between the air izzlfl? svstom and the exhaust and under a norioat Ion or unsafe running conditions of the train, the said alve is opened to vent the brake pipe so thut the brakes are applied.

For the purpose of rendering the automatic control mechanism inactive, as when it is desired to run the train without automatic control, there is provided a bypass 29 connecting the pipes 24 and 25, the said bypass bein controlled by a cock 30 which is norm-ally closed as shown in Figure 1, the opening of the cock permitting the free flow of reservoir air from the main reservoir 22 to the enginemans brake valve irrespective of any operation of the reservoir and brake valve .1; and there is also provided a cock 31 in the piping 26, the said cock being normally open as shown in the drawings and being closed when it is desired to render inoperative the control of the brake valve of the valve mechanism 21.

In the operation of the train control system theelectronmgnet 20 is energized under safe roadside conditions and is cleanergized under unsafe" roadside conditions to efi'ect the desired operations of the reservoir and brake valve mechanism 21. For directly controlling the operation of the e1ectroniagnet 20, there is provided a tra n carri d circuit which is normally energized by a train'carrii d source of energy such as the battery 312, the said circuit including the battery 32. conductor 33, a movable contact 3-1 normally occupying the full line position a shown in Figure 1 and movable from this position to a neutral dotted line position and an active dotted line p iition c, a corn ductor 35, conductor 36, the coil of the magnet 20, and conductor 37. This circuit, which is normally energized under safe running conditions, decnergized under dunger traflic conditions, the contact 34 being movable from the position a to the position 5 under such denger" roadside conditions, as will be detailed further hereinafter, this movement. of the contact to neutral position open ng the circuit for eli'ecting deenergiyiution of the magnet 20. Under "caution truck comlition \he woutu t Iii is caused to assume the position c for the closing of a second circuit to the magnet 20 for placing the same under the control of tinspeed of the train, this second circuit coulprisihg the battery :12, the, conductor 33, eoiitmt 34 in position 0, conductor 1 c ntncls R9 and 4) open when the speed If the train PXi'tPdS rt pi'eiletcriuiiuul medium iii-iii rind losed by the spud ir uit c ih [roller 41 when the movement o t ull'Lllll is reduced below su h pl'i'j ll'lil'llllHHl limit. conductors 4L and El ii-i' roimgln't Qt Hll i conductor 37 1h the other pub. (if butl r) 'il Thus the ,ieluuiioii of the lllJlt-iu); itinfi conta i clement into positi n iuid i' nill inerrg' m, d i-nergu the vi il fl'iiiilhi p uni; plum flu eiurgizutitu'. of th swim under the control of the speed controller 41 res )ectively to produce proceed, stop an restrictive speed train ell'ccts respectively. v

For controlling the behaviour or openition of the contact 34, there are provided cooperating train and roadside mechanism which includes roadside means vvh-ch in the present form of my invention comprises a pluralityof rump rails spaced along the roadside, a rail such as indicated at 43 being provided for each section or block of the track such as the block A shown in the drawings, the said ramp rail comprising means for transmitting energy to a train carried shoe mechanism M under given roadside conditions, such energy being transmitted to a translating device such as a relay generally designated as R, the action of which directly controls the operation of contact 34. i

Under normal running conditions of the train, with the train running between ramp mils, the translating device R, which coinprises a relay of the two-element type having a field coil 1" and an rmature coil 7, is energized by a train carried source of energy generally designated as E through a plurality of local circuits. one for the field coil r, and the other for the relay coil In the preferred construction the source of energy comprises, as shown in Figure 1 of the drawin s, a-plurulity of A. C. generators e an e fixed on a common shaft 45 and driven from a motor 46 connected to said shaft. These A. C. generators are designed to enerate current of like frequency, but of di erent phases for a purpose that will appear more in detail presently. The generator 0 is connected to always energize the relay r by means of the conductors 47 and 48. The ,lclici'zilm c energizes the arnniture coil r by means of the local circuit which includes the generator a, conductor 43), contacts hi) and 51 normally bridged by the shoe conta t 62, conducti-n-s 53 and 54. i' iitucl 55 c ntrolled by the relziy R and ii rnnilly oei-up \in; the full line positi n Show in Figure l, imtl'iu ui 5b, a C01]- i'lenser 57, conductors 5,5, 31) and (30, relay coil r, and tllliillll'll l' ii to the oth r terminal of the generutor i".

The tW' -"ii'llltlli ri-luv ll f the present invention is constructed to operute in respoin'i ii 'liill', mution and danger roiniii ons for operutiug the c ntacts 55 and 534 H- 51 tpo-ilion the sunie in any of three position. To lll'iflllllpllill this: the Qliliients and r oi the r l-1} are selectively energiz d in changing: the relative phase displzueuu ul of the enf-i'giZing currents for the ll1l|iilli,-, nu l utbe present imentiou this it. produced by "vliblll'lii'lhi) energizing the coil r :niil by chziug'in gj ilu phase of ti" i ll'iriil in lit energizing coil r i'i-spoiisiie ll l to +011 Iside ccnrlit-icns, with the cperaiion of thc relay clcmentu .mainiuizmd by the/WP hiclo or local circuits therefor ul'tcr any change thiarcin hushceu produced by the roadside mechanism. V

A Under the char cnmlitinns described, the current; pha a ill hc rcl y element F is so displaced by the cnmlemcr 57 in lhc non mul energizing circuit (he armature 'r is held iizypositimi h s iuriiuluining the coni-uc-ts and in ii; ll lii iitiuiiz Shawn. When the ruin passes a x ip under elem rcmlsidc ccn iiticnrryihc relay hi ccntrclled by the cccpcration (if thc uhuc 4:} and the ramp 43, ihc cmtvpcruziun, being such, that as the Shoe rid s :81 the "amp lhc ncrmally closed local. or train iZIXCllll described is ripened and another circuit substituted therefor, which other circuil is operated in respmisc f0 traniiic conrliiiuns. The suhsliml'cd circuit comprises a partial rrmrluirle circuit which ccnnectcrl lo the ramp 4-3, and a partial iruin carried. circuit whic i: mlcu the relay coil r and 5hr 1 ii mums energy a, the two Pm'iilul 0i cm 5 cumhiu ing to fcrru sample will ria'cun, (or lctcr ruining the furil 1 (i claims: c rcla lu thrp'icscnt Ca mimetic A ll: 1 1

mills circuit inclu lcs :i. circa ilcsiguial )UQlrb the rciwlui' r ithc Pllfffiilllllfl changer in luding cl. ahlu in the partial urch vira rlcui' 11f, 63, ccriiliuru (36. a cumicuscr cunlucl its cnm'milerl by the U durum 52 k, :1 cl Cult con hich 1:; m1

'- Hr: aim

i aimlm mli wi ML gurand hc mil.

in to energize the relay coil 1' so as to move thu'same in a position for positioning the contacts 34 uul 55 in the full line'position shown. As the shoe 4% leaves the ramp 43, the vehicle circuitii'hich includes the condenser 5? will aguirrbe closed at the COIlhHt 5i, anilthc ccmhined roadside and vehicle partial circuits will be broken. thc vehicle circuit being therefore substituted for the partial circuits for maintaining the energization of therelay in that phase produced hy the roadside phase changer, the condensers 37 alnd 67 being so designed as to effect this resu t. l

Tinder caution roadside conditions the line position shown, for substituting an inductancc T9 for thc condenser 67in the roadside partial circuit, so that. when the izhce 4 4 rides the ramp 43 for the uniting of thc partiul rcaalsirlc and vehicle circuits. the relay cull 1-" will he energized. from the train carricu source cf energy with current of a phase diilcrcnl; than the normal energizing current, thc inductance 79 producing a lag ill the curr cul, with respect tc the, E. M. F. cf the circuit i tuis cui llfiillfil (i the armature mil 2* m milling inc ccimict 3Q and 55 to the inclihcal Quill-Al line n iiiuufl lVheu thrshcc ll ,i-liic wing; 43 under them: caution if: allay mil r will llii main *urrgirru by the Rh ll uhzisc mar v rmwcuiclil of film in: $0 the incliiwl 'lilli ii'ii line pofiition cum-Ling the duce iiiig effect.

llurlcr rlzrligii (rack rmiiliticns (he mui'izmi cu'niuvi iii-9 cf the rcmlsirlc pole rainwater filfillliligq ilic i'ciiiczil rim/1: 41 line 2 rhoun lillxl ihc nculi'ul couturt rlwxicrgjizuium ul' (.hc Sigilk, shoe H- rirles the energization of the relay l\' and the electro-r magnet 20 is energized by the circuit closed by this contact 3 1, the valve 321 being operated to permit unlimited speed ahead. hen the train reaches a caution ramp the relay ii is energized by changing; the relative phase displacement ot the currents in the elements therein to more the contact 34 to the dotted line position a for closing the speed control circuit to the eleetrmnagnet 20, placing the operation of the magnet, under the control of the speed of the vebiele. Under danger conditions the relay R is deencrgized and the contact 34 controlled thcreby assumes the neutral position 7/. effecting the opening of the circuits to the electromagnet, 20 for operating the valve 21 to apply the brakes of the vehicle to bring the same to a stop.

For the purpose of permitting movement: of the vehicle under restrictive speed after the same has been brought to a stop there may be provided a resetting means which includes a manually operable reset means 81 controlled by the engineman and eti'eo tive for closing the caution circuit to the relay coil 1*, the said circuit including the source of energy a, conductor -19, contacts 50'to 52,conductor 53, conductor 89, contact 83 operated by the reset. means 83. conductor 84, inductance 80, conductors 59 and (it), relay elemeni- 1". and conductor 6]. to the generator c. lVith the losing of this circuit, it will be seen that the relay is ener ized through he inductance (i l for causing the centre-ts and 32 to a -ume the caution inclined dotted line p sition.

\lthough in the prelrrred form oi" my in vention I provide tvvo iau lepen-zicnt vehicle sources of ener 'e f'liit'll are, displaccabie to produce the cor: (f illlihfl relation betn'c ai the relay elements, it will be obvious that a single generator may be employed for this purpose. Although. 'tttrtherm'ore, I have shown in Figure 1 the electronn'tgnet it) onerated by a source of energy independent of the source of energy controlling the relay B, it will be apparent that these elenientsm ay be operated from the same source, A construction inchuling these modifications is shown in part in il ig. :2 of the drawings, and rel'errimg in this figure the relay elements r and r of the relay ll. connocteil to a sini/ie tenure": source E, the

relay element 2' being connected thereto by means of conductors 47' and 4S and the relay coil 2- being: connected thereto by means of the conductors G1 and circuit mechanism similar to that shown in Fig. 1, which in turn is connected to the source of energy by means of the conductor -19. The eleetromagnet 20' also may be energized from the common source of energy and normally by means of the circuit including said m .rce of energy, conductor 49', conduc tor 3T, coil conductor Contact 3i, and conductor 33.

lvhile l have shown my device in the prcferred form, it will be obvious that many changes and modifications may be made in the structure disclosed without departing from the spirit of the invention, defined in the following claims.

I claim:

l. in combination, vehicle carried mcchw nism and provisions for controlling the operation of the same in response to roadside conditions, comprising a three position elemeat, vehicle means differently energizable to operate said element into either of two of its three positions, cooperablc vehicle and roadside contact means for operating the said vehicle means, roadside circuit mechanism operable in accordance with roadside conditions tor determining the manner of energizing the said vehicle means, and a vehicle source of energy eli'ective through said r adside mechanism and contact means for energizing said vehicle means in the manner determined by the, roadside mechanism.

:2. in combination. vehicle carried mechanism and provisions for controlling the operation of the same in response to roadside conditions. romprisingr a three position element, vehicle means ditl'erently energizable to operate said element into either of two of its three ositions. intermittently cooperahle vehicle and roadside contact means for operating the said \tlih'le means, road i circuit mechanism operable in accord have with roadsitle conditions for d termining the manner of nergizing the. said \'e hicle means, and a vehicle source of energv eil'ertive thrrmgh said roadside mechanism and contact means for energ r/ii said vehicle means in, the manner determined by the roadside mechanism.

2 in combination, vehicle carried liltt'li:1 niem and provisions for controlling the operation of the same in res 'ionso to roadside conditions, comprising a three position element, vehicle means ditlcrently energimhle to. operate the element into either of twi positions and deenergiaible to operate the same in its third 1. i in cooper-able hie-lo and road "de contact means for operating the'said "vehicle means or lQYVltl' -Q the some inoperative, roadside chit eha nism i ptifilile iii fit' llizlll t Willi i' m i conditions for i iei'lniniiig th is :inn energ zing or dccncrgiznig oi' the Mliii hicle lilfiilis in (inmanner dcicrn 'ncd i the roadside n'iccliani ini.

4. ln con'il'iinai'ion, vehicle carried cclmnisin and provisions or controlling tiopen ai'ion ol' the same in iespon c to roa side conditions. com 'irising a three posit on element. :1 relav having a three-positii'm contact element dii'l'enently energizahle to produce difl'ereni control operations thereof, cooperahlc vehicle shoe and roadside ramp means for operating the said relay. roadside cir uit mechanisi'n operable in accordance with roadside conditions for determining the manner of energizing said relay. and a vehicle source of energy effective through said roadside mechanism and shoe and ramp means for energizing said relav in the man ner determined hv the roadside mechamsm.

5. In combination. vehicle carried mocha nisin and provisions for controlling the 0D eraii n of the same in response to roadside conditions. comprising vehicle means differently energizable by current phase changes to produce different control operai'ions thereof. cooperable vehicle and roadside contact means for operating the said vehicle means. roadside mechanism operable in accordance with roadside conditions for determiningthe current phase for en rgizing the said vehicle means. and a vehicle source of energy e'il'ec the through said roadside mechanism and contact means for energizing said vehicle means in the manner de termined hv the roadside mechanism.

6. In combination. vehicle carried mechanism and provisions for controlling' the operation of the same in response to roadside conditions. comprising vehicle means difierently energizahle by current phase changes to produce different control operations thereof. intermittently cooperable vehicle and roadside contact. means for operating the aid vehicle means. roadside mechanism operable in accordance with roadside conditions for determining the current phase for energizing! the said vehicle means. and a vehicle source of energy effective through said roadside mechanism and contact means for energizing said vehicle means in the manner determined by the roadside. mechanism. n.

T, In combination. vehicle g %r ied mecha- DlSIi'! and provisions for contro mg the operation of the same in. response-t0 roadside conditions. comprising a three-position element, vehicle. means diffrentlv energizable to operate said element into either of twoof its three positions, cooperahle vehicle and roadside contact means for operating the said vehicle means. road ide mechanism 0; cralile in accordance with l'()iiil \lll(' conilioiis for determining the manner of energizing the said vehi le means. and a "ehicie source of energy cil'cctirc through said roadside mechanism and contact means for energizing said vehicle means in the manner dc.- ti-rniincd by the roadside mechanism, and instrinncntalities on the vehicle effective for retaining the vehicle means in the condition of cnergization produced by the roadside mechanism.

S. In combination, vehicle carried niechanism and provisions for controlling the operationof the same in response to roadside conditions, comprising;' a. three-position elc merit, vehicle means differently energizablc to operate the element into either of two positions and deenergizahle to operate the same to its third position, cooperahle vehicle and roads de contact means for operating the said vehicle means or rendering the same in operative. roadside mechanism operable in accordance with roadside conditions for dctermining the manner of energizing or deenergizing of the said vehicle means. and :1. vehicle source of energy effective through said roadside mechanism and contact means for energizing said vehicle means in the manner, determined by the roadside mechanism. and instruinentalities on the vehicle effective for retaining the vehicle means in the condition of energization or deener gization produced by the roadside mechanism.

9. In combination, vehicle carried mechanism and provisions for controlling the operation of the same in response to roadside conditions. comprising: a. three-position. element, vehicle means diflerenily energizahle to operate said element into either of two of its three positions, cooperahlc vehicle and roadside contact means for operating the said vehicle means, roadside mechanism operable in accordance with roadside conditions for determining the. manner of energizing the said vehicle means. and a vehicle source of energy effective through said road side mechanism and contact means for enen gizing said vehicle means in the nmnnor determined by the roadside mechanism. and in strumentalities on the vehi le eilcctive for retaining the vehicle means in the condition of energization produced by the roadside mechanism, said instrnn'ientalitics including said vehicle source of energy.

10. In combination, vehicle carried mechanism and provisions for controlling the operation of the same in response to roadside conditions, com rising vehicle means difi'en ently energizab e by current phase changes to produce different control operations thereo czj= :pel"ahlc veh cl v and roadside contact means for opemti' lf said vehicle means, roadside meuhar e'n operable in accordance with roadside winditi ns for determining the iii! current phase for energizing the said vehicle means, and a vehicle source of energy etlective through said roadside mechanism and contact means for energizing said vehicle means in the manner determined by the roadside mechanism, and in trmnental ties on the vehicle effective for retaining the rehicle means in the condition of energixation prrdnced by the roadside mechanism.

11. In combination, vehicle carried, mechanism and provisions for Controlling the operation oi the same in response to roadside conditions, cmnprisin; vehicle means ditieren'ily energizahle by changes in phase of an energizing: currentto produce ditterent con trol operations thereof. a som'ie of energy therefor. cooperable vehicle and roadside co itact means for operating the said vehicle means, and roadside mechanism associated \vth the contact, means and oporahle in accordance with roadside (.(llltlli'ltflh for deten mining the phase of the energirinp, current t' r the said vehicle means.

ii. In combination. vehicle carried mecha rism and provisions for controllin, the n erition of the same in response to roadside conditions. comprising \ehirle tin-ans ditlorently energizahlc hr changes in phase of an energizing current to prodore ditl'erent eontrol operations thereof. a source of energy tlin'et'or. intermittentl cooper-aide vehicle and roadside contact means t'or operating the said vehicle means. and r adside mecl gp nistn asweiated with the conta t means and operable in accordance nith road ide w: ti ns tor determining thiphase of the encr giiilllg urrent for the said vehicle means.

13. In comhination. vehicle carried meehanism and provisions for controlling the operatii'n. ot' the same in res onse to roadside conditions -orn a'isin vehicle means oitlcrently energixahhh changes in pha e of an energizing current t i produce dill'erent control operations ther of. a source of energy therefor. eoo erahle Vehicle and oadside contact means tor operating: the said vehicle means. and r adside mechanism \ssoeiated with the ontact means and open able in accordance with roadside conditions for deterininim: the phase oi the energizing nrrent' tor the said which" means. and in sitrumentalities on th which cll'ectire f r retaining the vehicle means l'l tilt phas f nergization produced tit roadside mechanism.

14. In comhination, vehicl arii rism and provisirms for operation of the same in resp n to road-- sde conditiont-g ctnorrisiog \ehiele means differently energizahlr hy changes in phase of an energizingcurrent and al o deen-r el'gizahle to Produce ditl'eront control operations thereof. a sonne of energy means and roadside me hanism associated with the contact: means and opegihle in aceordance with roadside conditions for determining the phase of enern'ization and the deencrgization of the said rehicle means.

1:1, In combination, vehicle carried mechanism and provisions for controlling the opera 'ion of the same in respon e to roadside conditions. comprising electromagnetic means on the vehicle. ditl'erentlv energ zahle ivy current phase variations. a "(l)ltlt normally clo ed circuit therefor including a source of energy. vehicle and roadside contact means intermittently cooperahle to l realt the said circuit. and roadside mecha nism for determining the phase of en rgizati n for said elewtroma netic means and active during cooperati n f aid ontact means.

16. ln comhination. vehicle carried mecha nism and provisions for cmitrollingf the operation of the, same in response to road side conditions, comprising electromagnetic means on the vehicle ditl'erently enerQ'izable by current phase variations a vehicle normally closed circuit therefor including an alternating; current source of energy. vehicle and roadside cont-act means intermittently coopcrahle to break the said circuit; and roadside mechanism for determining the phase of energization for said electromagnetic means and active during: eooperation of said contact means.

17. In combination vehicle carried mechanism and provisions for controlling: the operation of the same in response to roadside conditions. comprising a stick relay on the vehicle differently energizahlc hy current phase variations. a vehicle normall closed circuit ther-r-t' nincluding a source of energy. vehicle and roadside contact means intermittently cooperahle to l\l({\l( tho said circuit and roadsid mechanism for determining the phase of enerzixation for said stielt relr and activ diving cooperation of said contact means.

18. In combination. Vehicle carried mecha nism and provisions tor controlling the peration of the same in response to roadside conditions. comprising eleetroma netic means on the vehicle ditterently energizahlo by curr nt. phase variations. :1 vehicle nor mally closed circuit therefor including a source of energy, vehicle and roadside contact means irtermittently cooperahle to break the said circuit and roadside mechanism for determining the phase of energiyation for said electromagnetic means and activo dnring cooperation of said ('Ulllflttf means, the said electromagnetic means he ing energizahle by said source of energy lay Way of said roadside mechanism and contact means during such cooperation of the contact means.

19. In combination,

vehicle carried Inn mechanism and provisions for controlling the operation of the same in response to roadside conditions. comprising electromag nel c means on the vehicle dili'ereuth en ergizalilc lrv current phase variations. a vc-- hiclc normally closed circuit therefor including a source of energy. vehicle and road side contact m ans interm ttently cmpe ahlc to break the. aid circuit, and roadside mcchanism for determining the phase of energization for said electromagnetic means and active during cooperation of said contact means, and instrumentalities on the vehicle effective for retaining the vehicle means in the condition of cnergization produced by the roadside mechanism.

20. In combination, vehicle carried mechanism and provisions for controlling the operation of the same in response to roadside conditions, comprising electromagnetic means on the vehicle difi'erently energiza'hle by cur ent hase variations and deenergizable, a sh is normally closed circuit therefor including a source of energy, vehicle and roadside contact means intermittently cooperableto break the said circuit and roadside mechanism for determining the phase of energization or the menergization for said electromagnetic means and active during cooperation of said contact means.

21. In comhination, vehicle carried mechanism and provisions for controlling the operation of the same in response to roadside conditions. comprising electromagnetic means on the vehicle differently energizalole by current hase variations, it normally closed circuit therefor including a vehicle source of energy. cooperahle vehicle and roadside contact means for intermittently breaking said circuit and producing a partial vehicle circuit including the electro magnetic means and the energy source. a roadside partial circuit including mechanismfor determining the phase of current therein, and means for connecting the ve hicle and roadside partial circuits into a completed circuit When the vehicle and road side contact means cooperate.

22. In combination, vehicle carried mechanism and provisions for controlling the operation of the same in response to roadside conditions. comprising a three-position element. electromagnetic means on the vehicle differently cnergizahle to operate said element into either of two of its three positions, a normally closed circuit ther for including a vehicle source of ener cooperablc vehicle androadside contact n for intermittently breaking aid circui .-l producing a partial vehic e circuit in. hiding the electromagnetic means and the energy source, a roadside partial circuit including mechanism' for determining the lllll flt characteristic therein. and means for coir necting the vehicle and roa l-idc pa "lial .ii

anism and provisions for ctmtrolling the operation of the some in response to roadside conditions comprising a three-position ole-- meal. clei-lromaguetic means on the vehicle dill'erentlv encrgizz'ihlc to operate the element into either of nvo positions and deeir ergizahlc to operate the same to its third position. a normally closed circuit therefor including a vehicle source of energy, cooperable vehicle and roadside contact means for intermittently breaking said circuit and roducing a partial vehicle circuit includmg the electromagnetic means and the energy source, a roadside partial circuit in cluding mechanism for determining the current characteristic therein or the dccncrgization thereof, and means for connec ng the vehicle and roadside partial circuits into a completed circuit when the vehicle and roads de contact means cooperate.

24. in combination. vehicle carried mechanism and provisions for, controlling the operation of the same in response to roadside conditions. comprising electromagnetic means on the vehicle differently cncrgimhlc by current phase variations. a normallv closed circuit therefor including a vehicle source of energ cooperahlc vehicle and roadside contact means for intermittently breaking said circuit and producing a partial vehicle circuit including the electromagnetic means and the energy source. a road. side partial circuit including mechanism for determining the phase of current therein. and means for connecting the vehicle and roadside par ial circuits into a cou'iplclcil circuit when the vehicle and roadside contact means cooperate, and instrnmcntalitics on the vehicle efi'ective for retaining the vehicle means in the condition of cnergizalion produced by the roadside i'nechanism;

In comhination. vehicle carried 1nechanism and provisions for controlling the operation of the same in response to road side condit ons ci'nnprising electromagnetic means on th vehicle dill'crcntly energiza'hle ly current pha e. variations. a vehicle source of oi'iergy. a plurality of vehicle circuits one uhstilutiva for another and each including the said source of energy and the electromagnetic means,-the circuits havingmeans for effecting variations in the phase of the current energizing the electromagnetic means. cooperahle vehicle and roadside contact means for intermittently hreaking Iher of the vehicle circuits and roducing a partial vehicle circuit inlu ing the electromagnetic means and the energy source, a roadside partial cimitit including mechanism for determining the current phase characteristic therein, and means for t ll onm ting the vehicle and roadside partial circuits into a completed circuit when the vehicle and roadside contact means cooperate.

ea. In combination. vehicle carried mechanism and provisions for controlling the opt-ration ot' the same in response to roadr 'l nditions comprising electromagnetic .is on th vehicle ditlerentlv energizable to produce ditl'rrent control operations hereof. a vehicle smut.- of energy. a plnralii of vehicle circuits one substitutive for in iicr and each including the said source at energy and the electromagnetic means, the circuits having suhstitutive capacitive and inductive means for effecting variations in the phase of the current energizing the electromagnetic means mmpcrflhlc vehicle and roadside Contact means for intermittently breaking either of the vehicle circuits and producing a partial vehicle circuit including the electromagnetic means and the energy source. a roadside partial circuit including interchangeable capacitive-and inductive mechanism for determining the current phase characteristic therein. and means to: onnccting the vehicle and roadside par- '4 circuits into a completed circuit when the vehicle and roadside contact means cooperate.

:27. In a train control system, vehicle carried mechanism comprising electromag netic means, difierently energizable by curut phase variations, a vehicle source of en rgy, a plurality of vehicle circuits one substitrtive for another and each including the said source of energy and the electromagnetic means. the circuits having interchangeable means for eti'ectine variations in the phase of the current energizing the elec tromagnetic means, and a circuit controller common to both circuits and operative for intermittently breaking either of the cir- (nits in the movement of the vehicle over a roadbed.

28. In a train control system. vehicle carried mechanism comprising electromagnetic means difl'erently energizable h v cur rent phasevariations. a vehicle source oi energy, a plurality of vehicle circuits one suhstitutive for another and each including the said source of energv and the electromagnetic means. the circuits having interchangeable capacitive and inductive means for etl'eeting ariations in the phas of the current energizing the electroniagnctitr IHQHIIF. and a circuit controller common to both circuits and operative Tor inter1uittently breaking either of the circuits in the. movement of the vehicle over a roadhcd.

differently energizable by current phase variations, a vehicle source of cnergvg'a plum. rality of vehicle circuits one substitutive for another and each including the said source of energy and the stick relay, the circuits having interchangeable means for etlecting variations in the phase of the current cu ergizing the stick relay. and a circuit controller common to botlrcircuits and operative for intermittently breaking either of the circuits in the movement ot'the vehicle over a roadbed.

30. In a train control system, track mechanism comprising contact means cooperating with vehicle mechanism in the movement of the vehicle over a roadhed, and a partial roadside circuit connected to said contact means, the sald roadside circuit including interchangeable capacitive and inductive mechanism for predcterminiug the current phase in said circuit.

31. In a train control syst em. vehicle ear ried mechanism comprising electromagnetic means differently energizable by current phase variations, a vehicle source of energy. a plurality of vehicle circuits one substitutive for the other and each including the said source of energy and the electromagnetic means, the circuits having interchangeable means for effecting variations in the phase of the current energizing the electromag netic means, cooperating vehicle carried and i roadside mechanism for breaking either of the circuits in the movement of the vehirle on the roadbed, and roadside mechanism for determining the phase of current encrgiza' tion of said electromagnetic means.

32. In a train control system vehicle carried mechanism comprising electromagnetic means differently euergizable by current phase variations. a vehicle source of energy, a plurality of vehicle circuits one. substitutive for the other and each including the said source of energy and the electromagnetic means, the circuits having interchange able, capacitive and inductive means for effecting variations in the phase of the current energizing the electromagnetic u Pans. cooperating vehicle carried and roadside mechanism for breaking either of the oil ouits in the movement of the vehicle on the roadbed, and roadside capaciti e and inductive mechanism for determining the phase of; current energization of said electromagnei in means.

In combination. vehicle carried mechanism and provisions for controlling the operation thereof comprising a relay having a field coil and an armature coil, means on the Vrl elif r energizing the said coils with current ct tlitl'erent relative phase displacements. eorqicntl'ih x hi le and roadside conductive contact "tn-arms for operatiugouc of said-coils, and a roadside mechanism inclndcoil.

34.. In combination. vehicle carried mech ltui lit;

auism and provisions for control in" 3 operation thmeof conzprismg a relay :u'mg

and a LOzlildidfi (nu-1311mm in Ending A yims Chang)? for 410M rminmg (he:- vEuu'mtz-r u? m:- m'gization. of said up: 1.0:! m and n hide source mi? mmr g 2m may (mils and or energizing tin by way of the roadsi iv ph: in: the (:oupemtiw pmiu l n M roadside Contact III-suns 35. In mmbinaiium vehicle carri d mechanism and provisions m7 mmi'rwiling the 0pm'utbm mu-0f mmprishzg :1 why hafing n W lt i (iv-i1 and as: zn'n'mhne 1301 means M: Lin? vehicle in)? Otu-rgi'ail'xg the SiEd (r0315 with cm'rmfs'of difivz'ens' i'ulzzi'iu M, U disgflzuw ments cnopemhie wk i'znwl roadside (mnlim-riiw cunt? for upvra/[fg one of bail uofls, and Eu nm-imnism inn-inda phase :gm $01 ilvtermining the utter (a? imam Hf said ope ai'ed mi, and in-iiepuwm i :mumw 02' energy fur {he fi'eld arr: :nmafi W. coils 3% said rvlay.

Signed at Niag Fail in the umnty of Niagara and Sta n M New Yurk, Hula L3H: day of January, A D. 1923 THEUDURE BOBB E. 

